M44, Manoma River Section, Khabarovsk (Jurassic of Russian Federation)

Where: Russian Federation (49.4° N, 137.3° E: paleocoordinates 52.6° N, 145.3° E)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Aalenian (174.1 - 170.3 Ma)

• bed-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified, red chert

• Thick-bedded red chert

Size class: microfossils

Preservation: original silica

Collection methods: chemical, hydroflouric,

Primary reference: I. M. Popova, P. O. Baumgartner, A. N. Filippov and A. I. Khanchuk. 1999. Jurassic and Early Cretaceous Radiolaria of the Lower Amurian Terrane: Khabarovsk region, Far East of Russia. The Island Arc 8(4):491-522 [W. Kiessling/W. Kiessling/W. Kiessling]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 51601: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 09.06.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Protozoa
 Nassellaria - Hsuidae
Parahsuum grande, Parahsuum officerense
Parahsuum grande radiolarian
Parahsuum officerense Pessagno and Whalen 1982 radiolarian
 Nassellaria - Amphipyndacidae
Palinandromeda cf. sognoensis
 Nassellaria - Eucyrtidiellidae
? Eucyrtidiellum sp., Eucyrtidiellum cf. quinatum
? Eucyrtidiellum sp. Baumgartner 1984 radiolarian
 Actinommacea - Xiphostylidae
? Tripocyclia sp.
? Tripocyclia sp. Haeckel 1881 radiolarian
 Spumellaria - Orbiculiformidae
Orbiculiforma sp.
Orbiculiforma sp. Pessagno 1973 radiolarian